Lining for combustion-furnaces.



UNITED STATES P A TENT OFFICE.

WILLIAM Y. GAMBEE, OF NEW YORK, N. Y.. ASSIGNOR TO EUGENE J. MCGUIRE, OF NEW YORK, N. Y.

Specification of Letters Patent.

:atentea may 1, 1906.

Application filed December 11,1905. Seria1No.291,224.

To all whom it may concern:

Be it known that I, WILLIAM Y. GAMBEE, a citizen of the United States, residing in the borough of Bronx, in the city and State of New York, have invented certain new and useful Improvements in Linings for Combustion-Furnaces, of which the following is a specification.

My invention relates to linings for combustion-furnaces, which linings may be either in the form of a plastic material directly laid within the furnace or in the form of fire-brick previously made and adapted to be laid in the usual manner.

It consists of anew composition of matter for this purposeconsisting of Portland ce- Inent, ground .slate, and cinders. The cinders may be in the form of ordinary steamashes as they are taken from beneath the grates of boilers or similar furnaces.

The proportion which I have found most advantageous in producing the lining is as follows: one part cement, two parts ground slate, and two parts cinders. It is of course understood that these proportions may be varied within considerable limits without departing from my invention.

I have found in practice that linings for combustion-furnaces made of the above materials and in substantially the proportions specified are far more durable than ordinary fire-brick or even than fire-brick of the finest quality. In some cases these linings have endured for more than six months in a furnace, where the best quality of Scotch firebrick burned out in less than three weeks.

What I claim is- 1. A composition of matter for lining combustion-furnaces and the like, composed of cement, ground slate and cinders.

2. A composition of matter for lining com bustion-furnaces and the like, composed of cement, ground slate and cinders in the proportion of one part cement, two parts ground slate and two parts cinders.

3. A composition of matter for lining combustion-furnaces and the like, composed of 'cement,--ground slate and cinders,-in the proportion of one part cement, two parts ground slate and two arts cinders, the cinders being in the form 0 ashes taken from beneath the grate of an ordina furnace.

In testimony w ereof I have signed this specification in the presence of two subscribing witnesses.

WILLIAM Y. GAMBEE.

Witnesses OLIN A. FosTER, Gno. L. COOPER. 

